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(!!!!!) (Best Overall Pair) GL-6072 GE 5 star triple mica black plates "D" getter halo 1953 NOS (2.7/2.5ma and 2.9/2.6ma) (same Gm) (AKG, Tele 251, Peluso, Rode)
(!!!!!) (Best Overall Single) CK-5687WB Raytheon black plates NOS 1960's (40.5ma/42ma) (Audio Note, Modwright, Manley) Highest mA and Gm
(!!!!!) (BEST Pair 1962) JG-6072 GE NOS triple mica black plates "O" getter 1962 (2.6/2.8ma and 2.7/2.8ma) 1-2% matched (mics, Audio Note, Kondo)
(!!!!!) (Best Single #2) JG-6072 GE double mica black plates "O" getter NOS 1963 (3.3/3.1ma) (AKG, Tele 251, Peluso, Rode) (similar sound to 5-Star GE)
(!!!!!) (Best Value Single 1953) GL-6072 GE 5 star triple mica black plates "D" getter halo 1953 like new - faded printing (2.4/2.6ma) (V1 guitar amp, mics, Audio Note) 1-3% section balance
(!!!!!) (Best Value Single 1953) GL-6072 GE 5 star triple mica black plates "D" getter halo 1953 used/tests like new (2.8/3.4ma) (same Gm) (V1 guitar amp, mics, Audio Note)
(!!!!!) (Best Value Single) 6072 GE 5 star triple mica black plates "O" getter halo 1960's - 2 hairline cracks top of glass - tests like new (2.4/2.7ma) (mic grade)
(!!!!!) (Bets Value Single) GL-6072 GE 5 star triple mica black plates "D" getter halo used/tests like new 1953-1954 faded printing (2.9/2.4ma) (V1 guitar amp, mics, Audio Note)
(!!!!!) (Pair 1952-1953) GL-6072 GE 5 star triple mica black plates "D" getter halo test like new fairly good printing (2.4/2.3ma and 2.2/2.5ma) 1-3% matched (Audio Note, Kondo, mics)
(!!!!!) (Recommended Single) JG-6072 GE triple mica black plates "O" getter NOS 1962 (2.9/2.3ma) (AKG, Tele 251, Peluso, Rode) (similar sound to 5-Star GE)
(!!!!) (BEST SINGLE #2) JG-12AT7WA=6201 GE NOS "blue tip - red dot" triple mica, "O" getter halo, gray plates 1960 (7.7/7.8ma) 1-2% section balance
(!!!!) (BEST SINGLE #3) JG-12AT7WA=6201 GE NOS "blue tip - red dot" triple mica, "O" getter halo, gray plates 1960 (8.6/11.8ma)
(!!!!) (Best Single 1973) 6201=12AT7WA GE branded Raytheon black plates triple mica O getter 1973 (8.5/8.2ma)
(!!!!) (Recommended Single 1954) GL-6201=12AT7WA GE "5 STAR" black plates triple mica D getter 1954 tests like new (8.2/8.4ma)
(!!!!) (Recommended Single) JG-6072 GE black plates triple mica "U" getter halo like new 1950's (2.5/3.1ma) (recommended for guitar amp or mic preamp)
(!!!!) (Single) 6080 GE black plates NOS 1980 era (86ma/72ma)
(!!!!) (Single) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 low hours/like new (2.2/2.0ma)
(!!!) (2nd Best GE Pair 1956) JG-6021 GE NOS "D" getter halo 1956 (6.3/5.9ma and 5.7/6.2ma) (mil-grade)
(!!!) (Best GE Pair 1956) JG-6021 GE NOS "D" getter halo 1956 (6.3/6.6ma and 6.8/7.1ma) (mil-grade)
(!!!) (Best Pair) 6203 GE NOS 1976-1979 (53-54/40 and 54-54/40)
